
Marea recapitulare
Authored by Ioana Nagit
Computers
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un bloc PL/SQL este compus din pana la 3 sectiuni, dupa cum urmeaza:
DECLARE (mandatory)
BEGIN (mandatory)
EXCEPTION (optional)
DECLARE (optional)
BEGIN (mandatory)
EXCEPTION (optional)
DECLARE (mandatory)
BEGIN (mandatory)
EXCEPTION (mandatory)
DECLARE (mandatory)
BEGIN (optional)
EXCEPTION (optional)
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
O exceptie PL/SQL este:
declarata prin cuvantul cheie EXCEPTION
declarat si gestionat intotdeauna intr-un bloc PL/SQL
un identificator asociat unei conditii anormale aparute in timpul executiei unui bloc PL/SQL
asociat unei conditii complet normale aparute in timpul executiei unui bloc PL/SQL
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Secventa
r c%rowtype
fetch c into r
exit when c%notfound
dbms_output.put_line('name= ' || c.cust_last_name)
afiseaza
numele unui client
numele ultimului client
mesaj de eroare, variabila cursor nefiind folosita corect
nu afiseaza nimic
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Ce tipuri de exceptii trebuie invocate in mod explicit?
exceptii definite de utilizator
exceptii predefinite
exceptii non-predefinite ale serverului Oracle
toate exceptiile trebuie invocate explicit
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
In secventa
update angajati
set salaries = salariul*procent/100
where id_angajat =20;
commit; :
COMMIT poate aparea in bloc, neavand efect si asupra comenzilor din afara blocului
blocul realizeaza o operatie de actualizare
UPDATE e permisa intr-un bloc pl/sql
COMMIT poate aparea in bloc, dar este independenta de acesta, avand efect si asupra comenzilor din afara blocului
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Secventa
for i in v_tab.first..v_tab.last loop
dbms_output.put_line(v_tab(i).last_name|| ' works in department: '||v_tab(i).department_id);
end loop;
dbms_output.put_line(v_tab.count);
incarca datele in tabloul indexat
utilizeaza tipuri de date colectie
realizeaza extragerea din tabloul indexat
este eronata
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Clauza FOR UPDATE:
se adauga pentru a bloca liniile afectate atunci cand cursorul este inchis
nu exista in PL/SQL
se adauga pentru a bloca liniile afectate atunci cand cursorul este deschis
impune deblocarea liniilor unei tabele anume
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